Stabilization of aging-induced self-pulsations and the elimination of an initial temporally saturable mode of degradation in (Al,Ga)As lasers by means of facet coatings
- 15 December 1979
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 35 (12), 905-907
- https://doi.org/10.1063/1.91018
Abstract
We demonstrate that half‐wavelength facet coatings of Al2O3 can arrest the growth of pulsations in the output intensity of (Al,Ga)As double‐heterostructure lasers during cw aging in a 70 °C dry nitrogen ambient while also eliminating an initial mode of degradation. These concurrent effects of the coatings suggest a common origin for the aging‐induced pulsations and the initial degradation and also support a recently proposed model for the origins of pulsations.Keywords
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